XOOMAR

Avidia Bancorp (AVBC)

Avidia Bancorp on one page: short interest, daily short volume, fails to deliver, large holders, 13F holders, earnings dates and insider trades. Listed on NYSE, classified by the SEC as savings institutions, not federally chartered.

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473K

Short interest

settlement 2026-09-30

2.9

Days to cover

+0.3 days vs prior

43.4%

Short share of volume

2026-10-23

1,393

Fails to deliver

settlement 2026-09-18

Mon 1 Feb

Next earnings

estimated date

$475K

Insider flow, 90 days

11 buys, 3 sells

As of 2026-10-23.

Short interest

FINRA, twice a month. The newest 28 settlements in the table, 28 in the chart. JSON

As of 30 September 2026, short interest in AVBC is 473,389 shares, down 23,213 shares over the last month. Over the last 28 readings it ranged from 6,057 shares (15 August 2025) to 496,602 shares (31 August 2026). The latest reading sits at the top of that range. At the reported average volume of 162K shares a day that is 2.9 days to cover.

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SettlementShares shortChangeAvg daily volumeDays to cover
2026-09-30473,389-1.9%162,1022.92
2026-09-15482,507-2.8%186,3022.59
2026-08-31496,602+20.1%146,1443.40
2026-08-14413,470+11.5%206,2392.00
2026-07-31370,938+18.6%75,4744.91
2026-07-15312,648+1.3%52,8125.92
2026-06-30308,554+314.9%334,6181.00
2026-06-1574,361+30.0%68,1321.09
2026-05-2957,208-7.6%48,4911.18
2026-05-1561,924-13.3%41,8631.48
2026-04-3071,456+13.6%57,4991.24
2026-04-1562,895-18.1%84,2231.00
2026-03-3176,843-11.1%61,3211.25
2026-03-1386,417+15.2%75,4941.14
2026-02-2775,012-12.7%56,0321.34
2026-02-1385,908-17.5%109,9681.00
2026-01-30104,114-16.8%76,5551.36
2026-01-15125,204-30.3%67,3721.86
2025-12-31179,587-17.6%69,2502.59
2025-12-15217,812-38.1%97,9842.22
2025-11-28352,045+12.0%67,7925.19
2025-11-14314,217-7.7%59,5415.28
2025-10-31340,459-8.8%52,1986.52
2025-10-15373,356-23.1%54,5896.84
2025-09-30485,417+1610.9%248,2451.96
2025-09-1528,372-45.1%112,6361.00
2025-08-2951,721+753.9%163,5931.00
2025-08-156,057+100.0%651,3451.00

Daily short volume

FINRA Reg SHO, the last 30 sessions. JSON

As of 23 October 2026, the short share of AVBC volume is 43.4%, down 7.5 points over the last five sessions. Over the last 30 readings it ranged from 30.4% (14 September 2026) to 76.5% (15 September 2026). The latest reading is 12.6 points below the 30-session average of 56.0%, on 40K shares reported.

DateShort volumeTotal volumeShort shareExempt
2026-10-2317K40K43.4%0
2026-10-2211K33K32.4%12
2026-10-218K14K55.8%0
2026-10-2015K42K35.1%0
2026-10-1913K18K73.9%203
2026-10-1629K57K50.9%0
2026-10-1517K26K66.0%910
2026-10-1411K17K64.0%0
2026-10-1319K29K63.5%0
2026-10-1214K35K40.1%0
2026-10-0913K20K62.3%500
2026-10-0819K27K69.3%109
2026-10-079K17K51.5%0
2026-10-0627K43K63.5%0
2026-10-0532K49K66.6%0
2026-10-0224K42K56.4%0
2026-10-0123K43K52.6%0
2026-09-3017K31K54.9%11
2026-09-2912K24K51.5%0
2026-09-2820K28K70.3%0
2026-09-2513K20K62.1%81
2026-09-2422K41K52.9%0
2026-09-2327K43K62.2%0
2026-09-2224K42K57.3%0
2026-09-2128K51K55.1%0
2026-09-1830K64K47.0%2,900
2026-09-1723K47K48.0%250
2026-09-1630K47K63.6%924
2026-09-1517K22K76.5%0
2026-09-1448K157K30.4%0

Fails to deliver

SEC, the last 30 settlement dates with a fail. JSON

As of 18 September 2026, the fails-to-deliver balance in AVBC is 1,393 shares, up 617 shares over the last settlement date. Over the last 30 readings it ranged from 4 shares (24 June 2026) to 8,489 shares (20 August 2026).

SettlementShares failedPriceValue
2026-09-181,393$22.19$31K
2026-09-15776$22.18$17K
2026-08-26245$21.93$5K
2026-08-208,489$22.00$187K
2026-08-19794$22.10$18K
2026-08-132,340$22.14$52K
2026-08-124,870$21.45$104K
2026-08-116,079$21.29$129K
2026-08-07635$21.74$14K
2026-07-2022$20.31$447
2026-06-306,236$21.15$132K
2026-06-244$20.36$81
2026-06-23315$19.76$6K
2026-03-23446$18.84$8K
2026-03-201,910$19.07$36K
2026-03-191,633$19.00$31K
2026-03-1782$19.24$2K
2026-03-161,362$19.03$26K
2026-03-1220$19.07$381
2026-03-102,681$19.11$51K
2026-03-091,099$19.12$21K
2026-03-06173$18.99$3K
2026-03-02252$18.73$5K
2026-02-23103$18.98$2K
2026-02-13510$19.07$10K
2026-02-12952$18.95$18K
2026-01-301,520$17.60$27K
2026-01-27140$16.95$2K
2026-01-2140$16.76$670
2026-01-06437$16.86$7K

Insider trades

SEC Form 4, newest first. JSON

Over the last 90 days AVBC insiders reported 11 open-market buys ($587K) against 3 sells ($112K), so the dollar flow leans toward buying. Latest filing: Nelson Jonathan Michael (CFO and Treasurer) on 2026-10-13.

DateInsiderTitleTypeSharesPriceValueOwned after
2026-10-13Nelson Jonathan MichaelCFO and TreasurerGrant76K$0.00$095K
2026-10-13Karmelek NicolasEVP and CROGrant32K$0.00$040K
2026-10-13Jensen Barry HEVP and Chief Admin OfficerGrant32K$0.00$074K
2026-10-13Frost Donald J IIIEVP- Consumer BankingGrant36K$0.00$036K
2026-10-13Doane ThomasEVP- Human ResourcesGrant32K$0.00$032K
2026-10-13Cozzone Robert DPresident & CEOGrant192K$0.00$0193K
2026-09-18Flanigan Micheal NeilDirectorSell2K$22.33$49K0
2026-09-18Flanigan Micheal NeilDirectorSell1K$22.33$29K2K
2026-09-18Flanigan Micheal NeilDirectorSell2K$22.35$34K4K
2026-09-16Candela VanessaDirectorGrant20K$0.00$020K
2026-09-16Flanigan Micheal NeilDirectorGrant20K$0.00$020K
2026-09-16Gallagher Carol VDirectorGrant20K$0.00$031K
2026-09-16GILLES MICHAEL ODirectorGrant20K$0.00$046K
2026-09-16Girard Michael RDirectorGrant20K$0.00$020K
2026-09-16Grimaldo Joseph FDirectorGrant20K$0.00$020K
2026-09-16Leland Jeffrey BDirectorGrant20K$0.00$025K
2026-09-16Murphy Michael DennisDirector, Chairman of the BoardGrant20K$0.00$069K
2026-09-16O'Connell MarkDirectorGrant20K$0.00$050K
2026-09-16Saul Kennedy ODirectorGrant20K$0.00$030K
2026-09-16BALL JAMES NDirectorGrant20K$0.00$020K
2026-09-16Blazar PaulDirectorGrant20K$0.00$049K
2026-09-14Murphy Michael DennisDirector, Chairman of the BoardBuy5K$22.12$111K7K
2026-09-03Nelson Jonathan MichaelCFO and TreasurerBuy5K$22.19$100K19K
2026-08-26Grimaldo Joseph FDirectorBuy5K$22.02$110K50K
2026-08-17Doane ThomasEVP- Human ResourcesBuy2K$22.31$39K19K
2026-08-11Saul Kennedy ODirectorBuy872$21.67$19K10K
2026-08-11Saul Kennedy ODirectorBuy4K$21.65$93K9K
2026-08-11Saul Kennedy ODirectorBuy79$21.64$2K5K
2026-08-11Saul Kennedy ODirectorBuy145$21.63$3K5K
2026-08-11Saul Kennedy ODirectorBuy513$21.62$11K5K
2026-08-11Saul Kennedy ODirectorBuy13$21.61$2814K
2026-08-11Grimaldo Joseph FDirectorBuy5K$21.44$100K45K
2026-06-03Nelson Jonathan MichaelCFO and TreasurerBuy1K$18.90$20K15K
2026-05-29Cozzone Robert DPresident & CEOBuy2K$18.80$40K67K
2026-05-27Karmelek NicolasEVP and CROBuy19$19.08$3638K
2026-05-18Jensen Barry HEVP and Chief Admin OfficerBuy500$18.88$9K42K
2026-05-15GILLES MICHAEL ODirectorBuy1K$18.92$19K5K
2026-05-15GILLES MICHAEL ODirectorBuy1K$19.17$19K20K
2026-05-15GILLES MICHAEL ODirectorBuy1K$19.12$19K26K
2026-05-14GILLES MICHAEL ODirectorBuy1K$19.50$20K25K
2026-05-14Jensen Barry HEVP and Chief Admin OfficerBuy500$19.26$10K42K
2026-05-13GILLES MICHAEL ODirectorBuy1K$19.50$19K4K
2026-05-13GILLES MICHAEL ODirectorBuy3K$19.50$59K19K
2026-05-13Cozzone Robert DPresident & CEOBuy2K$19.77$40K65K
2026-05-08Jensen Barry HEVP and Chief Admin OfficerBuy1K$20.19$20K41K
2026-04-29Jensen Barry HEVP and Chief Admin OfficerBuy1K$20.30$20K40K
2026-04-28Karmelek NicolasEVP and CROBuy1K$20.76$25K8K
2026-04-28Murphy Michael DennisDirector, Chairman of the BoardBuy2K$20.94$39K2K
2026-04-28Doane ThomasEVP- Human ResourcesBuy2K$21.16$43K17K
2026-04-28Karmelek NicolasEVP and CROBuy1K$20.76$25K8K
2026-04-27BALL JAMES NDirectorBuy5K$20.60$103K50K
2026-03-18Murphy Bartholomew H JREVP & Chief Operating OffBuy2K$19.15$29K23K
2026-03-12Murphy Bartholomew H JREVP & Chief Operating OffBuy440$18.62$8K10K
2026-03-12Girard Michael RDirectorBuy450$18.80$8K975
2026-03-12Jensen Barry HEVP and Chief Admin OfficerBuy1K$18.69$19K39K
2026-03-09Nelson Jonathan MichaelCFO and TreasurerBuy3K$19.39$50K22K
2026-03-09Murphy Bartholomew H JREVP & Chief Operating OffBuy2K$19.09$29K22K
2026-03-02Cozzone Robert DPresident & CEOBuy1K$18.79$20K63K
2026-03-02Karmelek NicolasEVP and CROBuy1K$18.59$20K6K
2026-02-25Karmelek NicolasEVP and CROBuy14$18.92$2658K
2026-02-23Jensen Barry HEVP and Chief Admin OfficerBuy1K$18.77$19K38K
2026-02-23Jensen Barry HEVP and Chief Admin OfficerBuy1K$18.65$19K37K
2026-02-11Jensen Barry HEVP and Chief Admin OfficerBuy1K$18.95$19K36K
2026-02-11Cozzone Robert DPresident & CEOBuy3K$19.36$50K62K
2025-12-17Jensen Barry HEVP and Chief Admin OfficerBuy3K$17.07$43K35K
2025-12-01BALL JAMES NDirectorBuy5K$16.13$81K45K
2025-12-01Murphy Michael DennisDirector, Chairman of the BoardBuy6K$16.00$100K7K
2025-11-24Nelson Jonathan MichaelCFO and TreasurerBuy3K$15.41$50K20K
2025-11-21Cozzone Robert DPresident & CEOBuy3K$15.33$50K60K
2025-11-18Jensen Barry HEVP and Chief Admin OfficerBuy2K$14.93$31K33K
2025-11-18Jensen Barry HEVP and Chief Admin OfficerBuy408$14.92$6K30K
2025-11-18Girard Michael RDirectorBuy525$14.96$8K525
2025-11-13Jensen Barry HEVP and Chief Admin OfficerBuy5K$15.24$76K30K
2025-11-10Cozzone Robert DPresident & CEOBuy3K$15.43$50K56K
2025-11-07Murphy Michael DennisDirector, Chairman of the BoardBuy3K$15.11$38K49K
2025-11-06Murphy Michael DennisDirector, Chairman of the BoardBuy1K$15.10$15K1K
2025-11-05Cozzone Robert DPresident & CEOBuy3K$15.26$50K53K
2025-11-05Murphy Michael DennisDirector, Chairman of the BoardBuy7K$15.13$98K47K
2025-11-03Cozzone Robert DPresident & CEOBuy3K$15.10$50K50K
2025-10-31Jensen Barry HEVP and Chief Admin OfficerBuy2K$14.99$33K25K
2025-10-31Jensen Barry HEVP and Chief Admin OfficerBuy293$14.78$4K23K
2025-10-30Cozzone Robert DPresident & CEOBuy3K$15.03$50K46K
2025-10-30Jensen Barry HEVP and Chief Admin OfficerBuy3K$15.00$38K23K
2025-09-18Cozzone Robert DPresident & CEOBuy3K$15.97$50K43K
2025-09-18Jensen Barry HEVP and Chief Admin OfficerBuy3K$15.85$40K20K
2025-09-11Cozzone Robert DPresident & CEOBuy3K$15.51$50K40K
2025-09-09Cozzone Robert DPresident & CEOBuy3K$15.50$50K37K
2025-09-04Cozzone Robert DPresident & CEOBuy3K$15.25$50K34K
2025-09-03Nelson Jonathan MichaelCFO and TreasurerBuy3K$15.45$50K13K
2025-08-29Cozzone Robert DPresident & CEOBuy3K$15.63$50K30K
2025-08-28Nelson Jonathan MichaelCFO and TreasurerBuy3K$15.47$42K10K
2025-08-28Nelson Jonathan MichaelCFO and TreasurerBuy500$15.47$8K8K
2025-08-26Cozzone Robert DPresident & CEOBuy7K$15.08$100K27K
2025-08-26Nelson Jonathan MichaelCFO and TreasurerBuy7K$15.08$100K17K
2025-08-22Jensen Barry HEVP and Chief Admin OfficerBuy3K$14.95$37K18K
2025-08-20Cozzone Robert DPresident & CEOBuy7K$14.99$100K20K
2025-08-15Cozzone Robert DPresident & CEOBuy7K$14.62$100K14K
2025-08-13Jensen Barry HEVP and Chief Admin OfficerBuy3K$14.50$42K15K
2025-08-13Jensen Barry HEVP and Chief Admin OfficerBuy100$14.45$1K12K
2025-08-13Cozzone Robert DPresident & CEOBuy3K$14.55$50K7K

Form 4 filings are due within two business days of the trade. Insiders sell for many reasons that say nothing about the company; open-market buys are rarer.

Large holders (13D and 13G)

One row per reporting person with its latest filing, newest first. JSON

3 holders report 5% or more of AVBC in their latest filing, all on Schedule 13G (passive). The largest reported stake is Avidia Bank Employee Stock Ownership Plan Trust at 8.0% of the class (1,606,100 shares), filed 2025-11-13 for an event on 2025-09-30.

FiledFormHolderSharesOf classEvent
2026-07-2713GBlackRock, Inc.parent holding company1.2M5.7%2026-06-30
2025-11-1413GT. Rowe Price Investment Management, Inc.investment adviser1.2M6.1%2025-09-30
2025-11-1313GAvidia Bank Employee Stock Ownership Plan Trustemployee benefit plan1.6M8.0%2025-09-30

13F holders

Tracked managers holding AVBC at their latest 13F. JSON

4 of the 30 tracked managers held AVBC at their latest 13F, $8.5M in total at quarter-end prices. Two Sigma Investments is the largest at $5.2M (0.0% of its portfolio) as of 2026-06-30. Over the prior quarter 3 added shares and 1 cut.

FundQuarterSharesValueOf portfolioChange in shares
Two Sigma Investments2026-06-30247K$5.2M0.00%+36K
Renaissance Technologies2026-06-30117K$2.5M0.00%+74K
Millennium Management2026-06-3023K$476K0.00%-300K
Citadel Advisors2026-06-3018K$377K0.00%+3K

Only the 30 tracked managers on the funds hub; a 13F reports long positions in US listed stock at quarter end, 45 days late, and says nothing about shorts or positions sold since.

What this page is

Avidia Bancorp in the regulatory record

Regulators publish company data in separate files that never sit next to each other: FINRA's twice-monthly short interest, its daily short sale volume, the SEC's fails-to-deliver counts, and each insider's Form 4. A company page puts those series for one ticker on one URL, with planned sales, large holders, 13F holders and financials beside them, so the short position, the daily flow, the settlement fails and what insiders are doing can be read together.

Each section has its own history table, a one-line summary of the latest figures and its own JSON and CSV links, and says when its source last updated.

This page follows Avidia Bancorp (AVBC), SEC CIK 2058758, listed on NYSE, classified by the SEC as savings institutions, not federally chartered. The cross-market tables live on the short interest and insider transactions hubs.

Source and updates

Short interest
FINRA consolidated short interestSource: FINRA.Twice a month, about eight business days after settlement. Latest 2026-09-30.JSON and CSV
Daily short volume
FINRA Reg SHO daily filesSource: FINRA.Every trading day, the morning after FINRA posts it. Latest 2026-10-23.JSON and CSV
Fails to deliver
SEC fails-to-deliver dataSource: SEC.Twice a month, a few weeks after the half month ends. Latest 2026-09-18.JSON and CSV
Large holders
SEC EDGAR Schedule 13D and 13GSource: SEC.New filings appear shortly after the SEC posts them. A 13D is due within five business days of crossing 5%; a 13G follows the passive schedule. Latest 2026-07-27.JSON and CSV
13F holders
SEC EDGAR Form 13F-HRSource: SEC.Quarterly, filed within 45 days of quarter end; 30 tracked managers. Latest 2026-06-30.JSON and CSV
Earnings dates
SEC EDGAR 8-K filings (Item 2.02)Source: SEC.Twice a day. Reported dates come from the company's 8-K filings; the next date is marked as an estimate until the 8-K arrives. Latest 2026-10-23.JSON and CSV
Insider trades
SEC EDGAR Form 4Source: SEC.New filings appear shortly after the SEC posts them; they're due two business days after the trade. Latest 2026-10-13.JSON and CSV
Company record
EDGAR filing index for CIK 2058758Ticker, name and exchange from the SEC's company list, refreshed weekly.
Rate limits
10 requests a minute without a key, 30 with a free key from a free account.

How to read it

  • Read the position against the flow: rising short interest with a high daily short share is new shorting; rising short interest with a normal short share is old shorts holding on.
  • Insider buys next to a large short position are rare and stand out; insider sells next to one are common and mean little.
  • Fails to deliver matter relative to the float, not in absolute shares; a million failed shares in a mega cap is noise.

Analysis of what the data shows, not advice. XOOMAR does not recommend buying, selling or holding anything.

Datasets

Frequently Asked Questions

How much of AVBC is sold short?
473,389 shares were held short at the 2026-09-30 settlement, 2.9 days of average volume. FINRA publishes the next count about eight business days after the 15th and the last business day of the month.
What is AVBC's daily short volume?
On 2026-10-23, 17,184 of the 39,576 AVBC shares reported to FINRA were sold short, 43.4% of the day's reported volume. Short volume is a flow for one day, not a position.
Does AVBC have fails to deliver?
The SEC's latest file shows 1,393 AVBC shares failed to deliver at settlement 2026-09-18. Fails are reported per settlement date and published twice a month with a lag.
Are AVBC insiders buying or selling?
Over the last 90 days AVBC insiders reported 11 open-market buys ($587K) against 3 sells ($112K), so the dollar flow leans toward buying. Latest filing: Nelson Jonathan Michael (CFO and Treasurer) on 2026-10-13.
Who owns 5% or more of AVBC?
3 holders report 5% or more of AVBC in their latest filing, all on Schedule 13G (passive). The largest reported stake is Avidia Bank Employee Stock Ownership Plan Trust at 8.0% of the class (1,606,100 shares), filed 2025-11-13 for an event on 2025-09-30.
Which tracked 13F managers own AVBC?
4 of the 30 tracked 13F managers held AVBC shares at their latest filing, $8.5M in all. The largest: Two Sigma Investments (247K shares, $5.2M), Renaissance Technologies (117K shares, $2.5M), Izzy Englander's Millennium Management (23K shares, $476K), Ken Griffin's Citadel Advisors (18K shares, $377K).

Data on this page is provided for informational purposes only and is not financial advice. See our editorial policy.