Vault-13

DYADIC INTL INC DEL DYAI

COM · Common Stock · CUSIP 26745T101

39 institutional holders +3 vs Q1 2026
4,625,7184.6m shares reported held*
12.7% of all shares outstanding*
$4.1mreported value*
6 new 5 added 7 reduced 3 sold out net sold ≈ $461.0k (-514.5k shares)

* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once. Holder counts are more reliable. Shares outstanding: 36.4m as of 2026-08-11, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $0.90. Options: 2 managers hold calls ($61.8k notional), 0 hold puts (—).

Trends to Q2 2026

Institutional holders

Managers reporting a position, each quarter

0204060Q3 22: 34Q4 22: 33Q1 23: 33Q2 23: 33Q3 23: 33Q4 23: 34Q1 24: 34Q2 24: 40Q3 24: 36Q4 24: 42Q1 25: 35Q2 25: 38Q3 25: 38Q4 25: 38Q1 26: 36Q2 26: 3939Q3 22Q3 23Q3 24Q3 25Q2 26
Numbers
QuarterHolders
Q3 202234
Q4 202233
Q1 202333
Q2 202333
Q3 202333
Q4 202334
Q1 202434
Q2 202440
Q3 202436
Q4 202442
Q1 202535
Q2 202538
Q3 202538
Q4 202538
Q1 202636
Q2 202639

Buyers vs sellers

Managers adding to or starting a position, vs cutting or selling out

Bought or addedCut or sold out
20020Q3 24: 11 bought or addedQ3 24: 11 cut or sold outQ4 24: 11 bought or addedQ4 24: 12 cut or sold outQ4 24Q1 25: 10 bought or addedQ1 25: 13 cut or sold outQ2 25: 14 bought or addedQ2 25: 7 cut or sold outQ2 25Q3 25: 17 bought or addedQ3 25: 12 cut or sold outQ4 25: 10 bought or addedQ4 25: 13 cut or sold outQ4 25Q1 26: 8 bought or addedQ1 26: 13 cut or sold outQ2 26: 11 bought or addedQ2 26: 10 cut or sold outQ2 26
Numbers
QuarterBought or addedCut or sold out
Q3 20241111
Q4 20241112
Q1 20251013
Q2 2025147
Q3 20251712
Q4 20251013
Q1 2026813
Q2 20261110

Calls vs puts

Options held, notional value, last 4 quarters. P/C = puts ÷ calls

CallsPuts
$0$20k$40k$60k$80kQ3 25 calls: $0Q3 25 puts: $1.8kQ3 25P/C —Q4 25 calls: $6.3kQ4 25 puts: $0Q4 25P/C 0.00Q1 26 calls: $59.9kQ1 26 puts: $0Q1 26P/C 0.00Q2 26 calls: $61.8kQ2 26 puts: $0Q2 26P/C 0.00
Numbers
QuarterCallsPutsP/C
Q3 2025$0$1.8k—
Q4 2025$6.3k$00.00
Q1 2026$59.9k$00.00
Q2 2026$61.8k$00.00

Biggest buyers

CITADEL ADVISORS LLC New +74,336+74.3k
XTX Topco Ltd New +46,665+46.7k
JANE STREET GROUP, LLC New +41,217+41.2k
NORTHERN TRUST CORP Added +36,894+36.9k
ASHTON THOMAS SECURITIES, LLC New +36,155+36.2k
LPL Financial LLC Added +1,500+1.5k
Tower Research Capital LLC (TRC) New +1,326+1.3k
UBS Group AG New +788+788
WELLS FARGO & COMPANY/MN Added +700+700
BARCLAYS PLC Added +87+87

Biggest sellers

Apis Capital Advisors, LLC Reduced -466,090-466.1k
BlackRock, Inc. Reduced -77,676-77.7k
GEODE CAPITAL MANAGEMENT, LLC Reduced -62,603-62.6k
LANDSCAPE CAPITAL MANAGEMENT, L.L.C. Reduced -41,753-41.8k
AlphaCore Capital LLC Reduced -36,155-36.2k
SUSQUEHANNA INTERNATIONAL GROUP, LLP Sold out -25,925-25.9k
TWO SIGMA SECURITIES, LLC Sold out -21,612-21.6k
Black Diamond Financial, LLC Sold out -19,331-19.3k
RENAISSANCE TECHNOLOGIES LLC Reduced -2,879-2.9k
SIMPLEX TRADING, LLC Reduced -214-214

Biggest calls

CITADEL ADVISORS LLC Reduced $61.6k68.8k shares
GROUP ONE TRADING LLC Unchanged $179200 shares

Biggest puts

None

Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.

Major shareholders (over 5%)

Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.

HolderStakeChangeShares Last filed
EMALFARB MARK A 13G · exempt (held before listing) +0.9 pts · filed 2026-02-17 17.5% +0.9 pts 6.7m≈ $6.0m 2026-02-17
Francisco Trust under agreement dated February 28, 1996 13G · passive investor -1.3 pts · filed 2026-08-17 10.3% -1.3 pts 4.2m≈ $3.7m 2026-08-17
Empery Asset Management, LP 13G · institution new · filed 2026-10-15 8.3% new 3.3m≈ $3.0m 2026-10-15

Insider purchases and sales since 1 Apr 2026

Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.

Officers and directors buying vs selling

Number of people, by quarter (10% owners not included)

BuyingSelling
101Q4 24: 0 buyingQ4 24: 0 sellingQ1 25: 0 buyingQ1 25: 0 sellingQ1 25Q2 25: 0 buyingQ2 25: 0 sellingQ3 25: 1 buyingQ3 25: 0 sellingQ3 25Q4 25: 0 buyingQ4 25: 0 sellingQ1 26: 0 buyingQ1 26: 0 sellingQ1 26Q2 26: 0 buyingQ2 26: 0 sellingQ3 26: 0 buyingQ3 26: 0 sellingQ3 26
Numbers
QuarterBuyingBoughtSellingSoldSold under a plan
Q4 20240—0——
Q1 20250—0——
Q2 20250—0——
Q3 20251$24.7k0——
Q4 20250—0——
Q1 20260—0——
Q2 20260—0——
Q3 20260—0——
DateInsiderTradeSharesPrice ValueTheir holding
2026-07-24 Francisco Trust under agreement dated February 28, 1996 10% owner Sold 2,616 $1.21 $3.2k2.6k shares -<1%
2026-07-23 Francisco Trust under agreement dated February 28, 1996 10% owner Sold 54,760 $1.30 $71.2k54.8k shares -2%
2026-07-22 Francisco Trust under agreement dated February 28, 1996 10% owner Sold 38,016 $1.33 $50.6k38.0k shares -1%

Their holding: how much the trade added to or took from the insider's holding (direct, or the trust or fund named). The same trade is sometimes reported by more than one insider, such as a fund and the director who represents it; totals count it once. A value is left blank where the reported price is far from the market price (usually a typo).

Holders, Q2 2026

#ManagerLocationShares Value% of their portfolioChangeShares change
1 VANGUARD CAPITAL MANAGEMENT LLC 0.00% of their portfolio MALVERN, PA 928,233928.2k $831.7k $831.7k 0.00% Unchanged
2 CHAPIN DAVIS, INC. 0.14% of their portfolio BALTIMORE, MD 888,004888.0k $795.7k $795.7k 0.14% Unchanged
3 Apis Capital Advisors, LLC 0.07% of their portfolio New York, NY 804,882804.9k $721.2k $721.2k 0.07% Reduced -466.1k -466,090
4 TRUIST FINANCIAL CORP 0.00% of their portfolio CHARLOTTE, NC 326,200326.2k $292.3k $292.3k 0.00% Unchanged
5 GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio BOSTON, MA 250,905250.9k $224.9k $224.9k 0.00% Reduced -62.6k -62,603
6 BlackRock, Inc. 0.00% of their portfolio New York, NY 197,749197.7k $177.2k $177.2k 0.00% Reduced -77.7k -77,676
7 VANGUARD FIDUCIARY TRUST CO 0.00% of their portfolio MALVERN, PA 139,478139.5k $125.0k $125.0k 0.00% Unchanged
8 MARATHON CAPITAL MANAGEMENT 0.02% of their portfolio Hunt Valley, MD 110,000110.0k $98.6k $98.6k 0.02% Unchanged
9 Sage Mountain Advisors LLC 0.01% of their portfolio ATLANTA, GA 106,564106.6k $95.5k $95.5k 0.01% Unchanged
10 HighTower Advisors, LLC 0.00% of their portfolio CHICAGO, IL 79,46979.5k $71.2k $71.2k 0.00% Unchanged
11 RENAISSANCE TECHNOLOGIES LLC 0.00% of their portfolio NEW YORK, NY 78,78678.8k $70.6k $70.6k 0.00% Reduced -2.9k -2,879
12 CITADEL ADVISORS LLC 0.00% of their portfolio MIAMI, FL 74,33674.3k $66.6k $66.6k 0.00% New
13 NORTHERN TRUST CORP 0.00% of their portfolio CHICAGO, IL 69,74569.7k $62.5k $62.5k 0.00% Added +36.9k +36,894
14 LANDSCAPE CAPITAL MANAGEMENT, L.L.C. 0.00% of their portfolio Englewood, NJ 55,26355.3k $49.5k $49.5k 0.00% Reduced -41.8k -41,753
15 AE Wealth Management LLC 0.00% of their portfolio TOPEKA, KS 53,75653.8k $48.2k $48.2k 0.00% Unchanged
16 PERKINS CAPITAL MANAGEMENT INC 0.03% of their portfolio WAYZATA, MN 48,05048.0k $43.1k $43.1k 0.03% Unchanged
17 XTX Topco Ltd 0.00% of their portfolio LONDON, X0 46,66546.7k $41.8k $41.8k 0.00% New
18 STATE STREET CORP 0.00% of their portfolio BOSTON, MA 42,55042.5k $38.1k $38.1k 0.00% Unchanged
19 Pekin Hardy Strauss, Inc. 0.00% of their portfolio CHICAGO, IL 41,74541.7k $37.4k $37.4k 0.00% Unchanged
20 JANE STREET GROUP, LLC 0.00% of their portfolio NEW YORK, NY 41,21741.2k $36.9k $36.9k 0.00% New
21 AlphaCore Capital LLC 0.00% of their portfolio LA JOLLA, CA 36,15636.2k $32.4k $32.4k 0.00% Reduced -36.2k -36,155
22 ASHTON THOMAS SECURITIES, LLC 0.00% of their portfolio ROCHESTER, NY 36,15536.2k $32.4k $32.4k 0.00% New
23 LPL Financial LLC 0.00% of their portfolio FORT MILL, SC 34,53834.5k $30.9k $30.9k 0.00% Added +1.5k +1,500
24 Inlet Private Wealth, LLC 0.01% of their portfolio Jupiter, FL 30,00030.0k $26.9k $26.9k 0.01% Unchanged
25 Robertson Stephens Wealth Management, LLC 0.00% of their portfolio San Francisco, CA 29,96930.0k $26.9k $26.9k 0.00% Unchanged
26 CAPTRUST FINANCIAL ADVISORS 0.00% of their portfolio RALEIGH, NC 15,00015.0k $13.4k $13.4k 0.00% Unchanged
27 COMMONWEALTH EQUITY SERVICES, LLC 0.00% of their portfolio WALTHAM, MA 12,57912.6k $11.3k $11.3k 0.00% Unchanged
28 SIMPLEX TRADING, LLC 0.00% of their portfolio CHICAGO, IL 11,86411.9k $10.6k $10.6k 0.00% Reduced -214 -214
29 HANCOCK WHITNEY CORP 0.00% of their portfolio GULFPORT, MS 11,11111.1k $10.0k $10.0k 0.00% Unchanged
30 HOEY INVESTMENTS, INC 0.00% of their portfolio COATESVILLE, PA 9,8479.8k $8.8k $8.8k 0.00% Unchanged
31 Vanguard Global Advisers, LLC 0.00% of their portfolio MALVERN, PA 7,3857.4k $6.6k $6.6k 0.00% Unchanged
32 PNC Financial Services Group, Inc. 0.00% of their portfolio Pittsburgh, PA 4,0004.0k $3.6k $3.6k 0.00% Unchanged
33 Tower Research Capital LLC (TRC) 0.00% of their portfolio NEW YORK, NY 1,3261.3k $1.2k $1.2k 0.00% New
34 WELLS FARGO & COMPANY/MN 0.00% of their portfolio SAN FRANCISCO, CA 878878 $787 $787 0.00% Added +700 +700
35 UBS Group AG 0.00% of their portfolio ZURICH, V8 788788 $706 $706 0.00% New
36 MORGAN STANLEY 0.00% of their portfolio NEW YORK, NY 268268 $240 $240 0.00% Added +41 +41
37 BARCLAYS PLC 0.00% of their portfolio LONDON, X0 159159 $143 $143 0.00% Added +87 +87
38 BNP PARIBAS FINANCIAL MARKETS 0.00% of their portfolio PARIS, I0 6969 $62 $62 0.00% Unchanged
39 JPMORGAN CHASE & CO 0.00% of their portfolio NEW YORK, NY 2929 $26 $26 0.00% Unchanged